Cobol b



C. R. BAKER.

AIR COOLED ENGINE.

APPLICATION FILED AUG.5, I9I8.

Patented Oct. 7,1919.

2 SHEETS-SHEET IIS II I I. IIII III c. RjBAKER.-

AIR COOLED ENGINE.

APPLICATION FILED AUG.5, i918. ,37,?50 Patented Oct. 7,1919.

2 SHEETS-SHEET 2.

i- OF KNOXVILLE, TENNESSEE, ASSIG'NOR'` T0 EDWARD L. FENTZ,

TRUSTEE, 0F CLEVELAND, OHIO.

Speoilcation of Letters Patent.

' w oooLEn ENGINE.

Patented @ein 7, i919.

Application led 'August 5, 1918. Serial No. 248,374.

This invention relates to means for cooling the engines in motor vehicles th-at are provided with explosion or internal combustion engines, and it has reference more particularly -to an air-coolin system embodying a detachable air-cooled ead adapted to be substituted for the usual water-cooled engine head rovided in certain types of engines of this c ass.

The primary objectof the present invention is to provide air-cooling means whereby the natural air-currents to which the engine is subjected during the motion of the vehicle, or artificially created air-currents, or both, are utilized as a cooling medium. Said means to take the place of water-cooling systems at present more or less universally used. Engines provided with the improved cooling means are better adapted for motorcycles, automobiles, and similar vehicles than engincs provided with the .means heretofore employed, as they are more eiiicient and less troublesome.

Another object of the inventionl is the rovision of means for combined air an oil cooling, the engine head bein` air cooled while the cylinders are oil coole A further object of the invention is the provision of air and oil cooling means that can readily be substituted for the water cooling systems with but little change in the general design of the engine.

A further object-is to 1provide means for the purpose set forth, t at is simple and durable in construction, and economical to install and maintain.

With these and other apparent objects in view, the invention consists of a detachable air-cooled engine head adapted to substitution for the usual water-cooled head, a funnel or megaphone shapedv member being attached to the side' water inlet opening in the cylinderblock casting, and extendln forward to the front of the engine hoo The funnel member takes the air-currents created bythe fan and by the i motion of the vehicle, and causes their circulatlon through the lower part of what was formerly the cylinder water jacket.

Suitable outlets are provided in the airi cooled head to permit the escape of the hot airfrom the .old water jacket, which remains an integral part of the cylinder block casting.

Further construction, combination and arrangement of the elements embodied in the invention will be full described in the speciicatlon and pointe out definitely in the appended c laims, reference being had to the accompanylng drawings, in which similar characters of reference designate correspondlng parts.

As the standard engine employed in the Ford automobile is well known, and as this improvement is appropriate to that engine,

it will be used for purposes of explanation,

therefore this specification has reference to an embodiment of the invention adaptable partlcularly to the Ford type of engine, it will however be understood that the Scope of the invention will admit of its application Vto lother enginesof the explosion type, which are provided with detachable heads.

I n the drawings Figure 1 is an outline elevatlon of a Ford engine equipped with the 1m roved aircooling means.

1g. 2 1s a fragmentary view of the side of 'the engine opposite to that' shown in Flg. 1. l

3 is a fragmentary front view.

Flg. 4 is a top plan view, and 'Fi 5 an underside view of the detachable hea Fi 6 is aside elevation of said head, and Fig. is a section on line 7-7 of Fig. 5.

Fig. 8 is an outline ,elevation showing the connections for a combined air and oil coolin system, and Fig. 9 is a plan view.

n engines of the ty e to which the present invention is ap licab e, the cylinder block casti 1 is prov1ded with a water jacket, the cylin er head is also jacketed. When water, cooled, the water from the lower radiator tank is conducted into the lcylinder block water jacket through a ipe connected with said block at lfhand by t errno-Siphon circulation paes from the cylinder block, throufgh the head to the up er radiator tank, androm there through t e cooling memvbers, back to the lower radiator tank.

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This'invention provides for using the old water jacketed cylinder block, attaching thereto at 1a a funnel shaped member 2.

The member-2 extends forward to the radia- 'p -tor casing 3. The radiator tanks and other lmembers ordinarily contained in the radiator case are preferably eliminated and a.

are provided in the detachable head '6 for Y the escape of the -hot air from the lower jacket, which is driven out by the incoming cold air currents.

y The exterior of the detachable head is provided with a series of ridges or flanges 7, preferably cast integral therewith and in herrlng-bone arrangement, as shown in Fig. 4, and deecting platesS are cast on the inside of the head. The vmembers 7 radiate the oool air taken in from the front of the vehicle and confined by a hood 9 over the engine head.v The hood is shown in section in Fig. 1. The plates 8 cause the cold air coming into the cylinders through the in take valves to be deflected across the top of the exhaust valves.

The detachable head is designed to correspond to the contour ofthe cylinder block and gasket, and is provided with suitable bosses 10 having bolt holes therein that register with the Ibolt holes in said gasket/,and c linder blockrsprvision is also made in t e head or spark-plugs, as shown at 11.

In certain types of engines, notably the Ford, core holes 12 are provided in the cylinder block,` and when water-cooled these holes Yare plugged. vWhen the improved air-4 cooling meansare employed the plugs are removed and the hot air allowed to esca e lthrough the holes from the chamber. fn

. dental to freezing of radiators'and water jackets, however if it is desired to employ Y the air-cooled head perpetually', an oil tank 15z Fig. 8, can be added, said tank being connected to the inletl of the suitably l v jacket in the cylinder block, as Shown at 17,

and connections 16 made through the aircooled head from the outlet 5 which opens into the jacket lof the cylinder block, thus the head of the engine is aircoo1ed while that part ofthe engine cast integral with the .mentof my invention, what I claim and desire to secure by Letters Patent is. 0,

1. Means for cooling internal combustion engines, comprising a jacketed cylinder block, a detachable head .'for *saidl block,

said head havin deiecting members on the z interior thereo ports through lsaid head connected with the jacket in the cylinder block, and means for circulating air through the c linder block and head. l

2. eans for air cooling internal combustion engines, comprising a jacketed cylv inder block, a detachable head for said block, said head having dedecting members on the interior thereof, ports through said head connected with the jacket in the cylinder block, -air cooling danges on said head, connections with the cylinder block jacket and connecting ports in the head providing thermo-Siphon circulationv through said cylinder block and head.

3. ln an air-cooled engine, a detachable cylindet head adaptable to an air-jacketed cylinder block, said head being rovided with ports that connect with the air chamber in the cylinder block, and havin cooling anges on the exterior and de ecting plates on the interior thereof.

' 4. Means for air-cooling engines, comprising a cylinder 'block having a jacket that provides an' air-chamber around' the cylinders, an exterior air-conductor connected withv said air-chamber on one side of the block and openings from said chamber on the opposite side thereof, a detachable head for said'block, said head being provided with ports'ithatextendltherethrough and connect with the air-chamber in the cylinder block, cooling flanges on the exterior and ldeiecting plates on the interior of said head,

Y and a hood over the head for receiving extesome mstances it 1s deslrable to connectthe.

'carbureter intake pipe with one or more of said core holes and thus take the hot air to' rior air currents whereby'said head is cooled.

5. Means for air-cooling engines, comprising a cylinder block having a jacket that provides an air-chamber around the cylinders, an exterior air-conductor connected with saidl air-chamber'on one side ofthe block', and openings from Asaid. chamber on the opposite side thereof adapted for connection with the engine carbureter, a detachable head for said block, said head being provided with ports that extend therethrough and connect with the air-chamberin the cylinder block, and having deecting members on Athe interior thereof.

6. Means for converting .a water-cooled engine provided with a detachable head, to an air-cooled engine, comprising an air-cooled head adapted to substitution for the watercooled head, said air-,cooled head having cooling anges en the exterior and deflectsaA ing members on the interior thereof and portsl therethrough that connect with the jacket provided in the cylinder block, and Van air conductor connected with said water- 5 jacket in place of the water supply pipe.

7. In an air-cooled engine, a detachable cylinder head adaptable to an air-jacketed cylinder block, said head being provided with ports that connect with the air cham- 4fleeting mem ers on the interior 'thereo In testimony whereof I ax'my signature.

VCOROL R. BAKER.; 

